View Compilation Error

0_0_21595569_20005.cpp:35:28: error: stray '#' in program
     while (cin >> s,s[0]!='#') {
                            ^
0_0_21595569_20005.cpp:35:32: error: stray '#' in program
     while (cin >> s,s[0]!='#') {
                                ^
0_0_21595569_20005.cpp:35:34: error: stray '#' in program
     while (cin >> s,s[0]!='#') {
                                  ^
0_0_21595569_20005.cpp: In function 'int main()':
0_0_21595569_20005.cpp:35:29: error: lvalue required as unary '&' operand
     while (cin >> s,s[0]!='#') {
                             ^
0_0_21595569_20005.cpp:35:31: error: expected ')' before ';' token
     while (cin >> s,s[0]!='#') {
                               ^
0_0_21595569_20005.cpp:35:35: error: lvalue required as unary '&' operand
     while (cin >> s,s[0]!='#') {
                                   ^
0_0_21595569_20005.cpp:35:38: error: expected primary-expression before ')' token
     while (cin >> s,s[0]!='#') {
                                      ^